46216921 has 4 divisors (see below), whose sum is σ = 46231012. Its totient is φ = 46202832.

The previous prime is 46216879. The next prime is 46216927. The reversal of 46216921 is 12961264.

46216921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13039321 + 33177600 = 3611^2 + 5760^2 .

It is a cyclic number.

It is not a de Polignac number, because 46216921 - 2²³ = 37828313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46216927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (11557753).

Almost surely, 2^46216921 is an apocalyptic number.

It is an amenable number.

46216921 is a deficient number, since it is larger than the sum of its proper divisors (14091).

46216921 is an equidigital number, since it uses as much as digits as its factorization.

46216921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14090.

The product of its digits is 5184, while the sum is 31.

The square root of 46216921 is about 6798.3028029060. The cubic root of 46216921 is about 358.8671202782.

The spelling of 46216921 in words is "forty-six million, two hundred sixteen thousand, nine hundred twenty-one".